Nut-lock.



B. HLBAL LOU. v

NUT LOCK.

APPLIOATION FILED DEC .18, 1912.

Lggii gg Patented July 15,1913.

WITNESSES lzVVlizVTO/B ERNEST H. EAL LOU, OF BINGHAMION, I-IELV YORK;

NUT-LOCK.

Specification of Letters Patent.

1 noun a.

Fatentetl can 15, tors.

Application filed December 18, 1912. Serial No. 737,550.

An object of my invention is to provide an improved nut locking device, and more particularly mechanism for neventing rotation ot the locking device, proper, upon the bolt.

Another object of my invention to provide a device of the :t'oregoing character wherein means are provided for locking the nut proper upon the bolt, and means also employed {or preventing the reverse movement of the locking, means upon the bolt consequently assuring the rigidity of the same.

It further objectv of my invention is to provide a dwice of the character set forth above wherein the nut proper is frictionnlly held in a locked position upon the bolt, means being also employed for ii-eventing the reverse movement of the locking means and consequent. releasement of the not or the lock.

A st' l further object. of. the invention is to pro which consists of but a few simple parts whereby it may be niamifactured and placed upon the market at a minimum cost.

Many disadvantages have been found in existing iorms of nut locks. Thw'e disath vantages result. from different on" r 4 ditions and :mcordingto the theory by .vliicn the nut. is locked. iln a device of this part-ieula r character. wherein tne nut frictionally held upon the bolt. apparently the nut is held rigid and its reverse movement prevented. After experimenting and realizing thatv this form of nut lock in'c'l'licient for its purpose I have dcv' ed means which overcome the existing difficulty. This means comprises a coiled elastic member which is qrictionally carried by the locking member and employed to prevent the reverse anorenrent. thereof which in most. cases is caused by the jarring. lVhiletheinut proper is, in the. ordinary cases, securely looked first, the locking member tends to rotate .de' a. device of the above. clmracteu upon the bolt thus releasing the frictional engagement liietwecn the nut and the bolt and destroying the rigidity of the same. In my invention the locking device is securely held against rotation through the medium of the aforesaid elastic member thus preventing accidental disloclgmcnt of the loclo' ing device and consequent releascnient of the nut.

lVith the above and other objects in viewmy invention relates to such details of construction and in the arrangement and com- I bination of thcparts will be hereinafter fully described and specifically set forth in the appended claims. In describing my invention in detail reference will be had to the accompanying drawings wherein, like characters denote like or corresponding partsthroughout, the several views and in which:

Figure 1 is a side elevation of my invention showing the nut in a locked position. Fig. 2 is a vertical sectional view of the locking device illustrating the engagement between the locliino device and nut proper, the bolt however ng shown in elevation. Fig. 3 is a sectional view taken on line 3-3 ot Fi 1. Fig. l is a sectional view of the device such as shown in Fig. 3 however the locking elastic member is shown in a ditt'ercntposition. Fig. 5 is a plan view of the device showing the hidden parts in dotted lines. Fig. (3 is a perspective view of the nut proper.

In the accompanying drawings, iny invcntion has been illustrated in connection with the ordinary form of bolt, now in common use, but it will be :npreciated that this selection does not limit the use of the device in the least in view of the fact that the same is readily applicable to other forms of bolts.

.onsistcnt with theabove l have illustrated a bolt 10 having a portion thereof screw threaded as shownD-and carrying the usual polygonal shaped head portion 11 at its lower extremity. The nut which I have illustrated consists of a body portion 12 bein g substantially polygonal inshape, the body portion having an interior screw threaded opening 13 provided centrally therein which communicates with the interior boreiof an extension 14; provided upon the nut. The in tcrior bore of the extension" is "also screw .threzu d as is shown, so that the operative the nut upon the bolt is not hindered wast.

Upon reference to 2 of the drawings Will be recognized that the base of the extei 'ori 14; is considerably "wider than the uni thereof consequei'itly providinga conical or slanting face or Wall. White the outer feces of the extension are sienting, to to substantially Wedge shaped member its inner face is substentieilyvertical and does not impede the rotation of the nut to any degree. For the purpose that Will presently appear, the extension List is pro 51 wit '1 ice of vertically eftcnding 'hile ii certain number (if-slots noted in drawings it is to ed that this number merely .vlustrate the operativeness oil the i e and that eny number may be provided the desire of the owner.

The locking device of my invention coniiee been be e pprec of nut 16 having a central opening 1'7 formed therein which 1.8 is apparent, is ew' threaded t receive the similarly n of the bolt. While the nut cion projecting from the upper side tmaieo'f the locking device has its projection depending from the under side thereof, the projection being designated in the drawings by the. numeral 18. The inner faces of the l IBFOjQvStiCII are spaced a slight distance from the interiorbore-ai the mem-' her and are cut slanting as saovvn et- 19, the mouth c the projection being considerably the base thereof operation of my invention the nut crev d upon the bolt to the desired 'i 5 after which locking device is .i thereon and rt d until it resumes the p ion shown i The action off the .r oi the projection 18 upon the s, ringy s gments oi? the extension 3.4% will tend tciforce the letter i' boltin such a manner that the the upon the letter are distorted to '"ei extent, thus reed ily eesuv the out. It. will be recogg men to vic (i in extension i i-its eiestieiy is 1ncreased thusbeingr more easily. forced in- Werdly than would be ordiiierily'the case.

@onsistent Wit-lithe above remarks, i have provided on enemy inching means de-, signed to assure rigidity of the locking device upon the bolt. With this in view I have provided the outer face of the projection 18 with en annular depression 20 in which is disposed an elastic member 21, one end 22 of the some however formedinto a tongue extending through the opening in the projection zind'beingg held in eiig-ige ment with the extension 14% through the springy action of its body portion. l Vhile the end 522 of the elastic-member is'normally held in engagement with the J as more slots are proextension 1 2, it

rcemee Will be recognized that if for any reason advantages and novel features of my invention Will be readily comprehended,

Such changes as are permissible by the subjoined claims may be resorted to Without, departing from the spirit of my invention.

Having thus fully described my invention What- I claim as new and desire to secure by Letters Patent is: v

p 1. In a device of the class described, the combination of a bolt, a. nut device operable iTllfl60li,' t lockingdevice disposed on said bolt, one of said devices provided with a' conical portion, the other of said devices provided with a recess having a conical wall to receive said portion, a yieldable locking member carried by one f said devices provided with e tongue, each of sniddevices providedwith a slot,sa id tongue adapted to enter both of said slots.

2. In a device of the character described,

the combination of a bolt, a. nutoperable recess, end a locking member disposed. .ivitlun said recess and extending through said pro3ect1on and mto said extension, as

said projection provided with. an arcuate and for the purpose set forth and described.

3,1In a device of the class described, the

combination of a bolt, e nut device operable thereon, a locking. device disposed on said bolt, one of said device's provided with a conical portion, the'otherof' said' devices provided With a recess having a conical Wall to receive said ortion, a locking, member of spring materiel carried. by one of said devices hsivinge tongue portion to engage the device to removebly fasten the locking member thereto, and the other device provided with a slot, said tongue iuiapted tov enter said slot. I v

- ERNEST H. BATJLOU.

Witnesees;

PETER 'P. LINNEEN, T. H. GUYAM.

por 

